Outdoor heater



FIG. 1 is a front and right side perspective view of an outdoor heater showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left side elevation view thereof, the opposite side being a mirror image of that shown;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front elevation view of an outdoor heater showing a second embodiment of my new design, the sole difference being the configuration of the base. 

The ornamental design for an outdoor heater, as shown and described. 